Can You Jump a Car in a Thunderstorm? Exploring Safety and Precautions

We’ve all been in situations where our car battery unexpectedly dies, and it usually happens at the most inconvenient times. Now, imagine this happening in the middle of a thunderstorm. You may be tempted to quickly jumpstart your car and get back on the road, but is it safe to do so during a thunderstorm? In this comprehensive guide, we’ll delve into the risks associated with jumpstarting a car during a thunderstorm and explore safety measures and precautions to follow if you find yourself in this challenging scenario.

Understanding the Dangers

Jumpstarting a car during a thunderstorm might seem like a straightforward task, but it comes with several inherent risks. Let’s examine some of the potential dangers:

1. Electrical Hazards

Thunderstorms are known for their lightning strikes, and lightning produces powerful electrical discharges. When you jumpstart a car, you’re dealing with electrical connections, which can make you vulnerable to electrical shocks if lightning strikes nearby.

2. Wet Conditions

Thunderstorms bring heavy rain, creating wet and waterlogged environments. Water is an excellent conductor of electricity, and standing water or puddles can increase the risk of electrical shock when handling jumper cables.

3. Slippery Surfaces

Wet surfaces can be slippery, making it challenging to safely connect jumper cables. Slip and fall accidents can occur, potentially causing injury or damage to your vehicle.

Safely Jumpstarting a Car in Bad Weather

While it’s generally advisable to avoid jumpstarting a car during a thunderstorm if possible, there are situations where you may have no other choice. In such cases, it’s crucial to take safety precautions seriously. Here’s how to safely jumpstart a car in bad weather:

1. Use a Portable Jump Starter

One of the safest methods for jumpstarting a car during inclement weather is to use a portable jump starter. These compact devices are designed to provide the necessary power to start your vehicle without requiring another car. Portable jump starters come with built-in safety features, reducing the risk of electrical hazards associated with traditional jumpstarting methods.

2. Seek Shelter

Whenever possible, seek shelter before attempting to jumpstart your car. Parking garages, gas stations with coverings, or any location that provides protection from rain and lightning should be your first choice. Avoid open fields, tall objects, or exposed areas during a thunderstorm, as they increase your vulnerability to lightning strikes.

3. Follow Safety Precautions

If seeking shelter isn’t an option, and you must jumpstart your car outdoors, follow these safety precautions to minimize risks:

  • Keep Cables Dry: Ensure that the jumper cables remain dry throughout the process. Do not let them come into contact with rainwater or puddles, as this can lead to electrical shock.
  • Stand on Dry Ground: Position yourself on dry ground while connecting the jumper cables. Avoid standing in water or on wet surfaces, which are conducive to electrical hazards.
  • Minimize Metal Contact: Prevent the ends of the jumper cables from touching each other or any metal surfaces on the vehicle. Such contact can result in sparks and electrical dangers.
  • Disconnect Quickly: Once the car starts, disconnect the jumper cables promptly. This minimizes the chances of electrical issues occurring after the car has been jumpstarted.

The Importance of Routine Vehicle Maintenance

While jumpstarting a car during a thunderstorm can be done with precautions, it’s crucial to remember that prevention is the best strategy. Regular vehicle maintenance, including checking the battery’s condition and voltage, can help you avoid finding yourself in a situation where you need to jumpstart your car during adverse weather conditions. Here are a few maintenance tips:

  • Battery Inspection: Periodically check your car’s battery for signs of corrosion, loose connections, or a weak charge.
  • Voltage Testing: Use a multimeter to measure the voltage of your battery. A healthy car battery typically reads around 12.6 volts when fully charged.
  • Replacement: If your battery is old or consistently weak, consider replacing it before it fails completely.


Jumpstarting a car during a thunderstorm is not an ideal scenario due to the associated risks of electrical hazards, wet conditions, and slippery surfaces. Whenever possible, seek shelter or use a portable jump starter as a safer alternative. However, the best approach is to prevent a dead battery in the first place through routine vehicle maintenance. Your safety should always be the top priority when dealing with adverse weather conditions and electrical components.

Frequently Asked Questions

Is it safe to jumpstart a car during a thunderstorm?

Jumpstarting a car during a thunderstorm is not recommended due to the increased risk of electrical hazards and wet conditions. It is safer to use a portable jump starter or seek shelter.

What is a portable jump starter, and how does it work?

A portable jump starter is a device designed to provide the necessary power to start a vehicle without the need for another car. It works by delivering a surge of electricity to the dead battery, allowing the engine to crank and start.

Can I use jumper cables in the rain?

Using jumper cables in the rain is not advisable due to the increased risk of electrical shock. Wet conditions can make the jumpstarting process dangerous.

What should I do if I’m caught in a thunderstorm with a dead car battery?

If you find yourself in this situation, the safest option is to seek shelter and wait for the storm to pass. Alternatively, you can use a portable jump starter if you have one.

How can I prevent a dead car battery?

Routine vehicle maintenance, including checking the battery’s condition and voltage, is the best way to prevent a dead car battery. Keeping your battery in good shape reduces the chances of needing a jumpstart during adverse weather conditions.